U.S. Housing and Urban Development Secretary Ben Carson on Wednesday will propose to increase the amount low-income households are expected to pay for rent as well as require those receiving housing subsidies to work, according to the administration’s legislative proposal obtained by The Washington Post.

The move to overhaul how low-income rental subsidies are calculated would affect more than 4.5 million families relying on federal housing assistance. The proposal legislation would require Congressional approval.

Currently, tenants generally pay 30 percent of their adjusted income toward rent or a the public housing agency minimum rent not to exceed $50. The administration’s legislative proposal sets the family monthly rent contribution at 35 percent of their gross income or 35 percent of their earnings by working 15 hours a week at the federal minimum wage – or approximately $150 a month, three times higher than the current minimum.

The Trump administration has long signaled through its budget proposals and leaked draft legislation that it sought to increase the rents low-income tenants pay to live in federally subsidized housing.

The White House budget proposal for the 2019 fiscal year indicated that it would “encourage work and self-sufficiency” across its rental assistance programs. The reforms would require adults who are able to work to “shoulder more of their housing costs and provide an incentive to increase their earnings,” budget documents said.

HUD also seeks to change the deductions that could be considered when determining a tenant’s rent, eliminating deductions for medical and childcare costs.

“When we are in the middle of a housing crisis that’s having the most negative impact on the lowest income people, we shouldn’t even be considering proposals to increase their rent burdens,” said Diane Yentel, president of the National Low Income Housing Coalition.

Carson plans to lay out the administration’s reform plans in a press call about an hour before a Wednesday afternoon House Financial Services subcommittee hearing on rent reform.